Phonograph or talking-machine.



P. B.- DELANY} PHONOGRA'PH 0R TALKING MACHINE.

APPLICATION FILED MIT-21,1914.

anwntoz price PATRICK B. DELANY, OF SOUTH ORANGE, N J

' rHoNoGRAPH on TALKING-MACHINE.

Specification oi" Letters Patent.

. Patented July 118, 1816.

Continuation of applications Serial No. 700,394, filed May 29, 1912, andSerial No. 779,947, filed July 19,

I 1913. This application filed October 21, 1914. Serial No. 867,710.

To all whom it may concern Be it known that I, PATRICK B. DELANY, acitizen of the United States, residing at South Orange, county of Essex,State of NewJersey, have invented certain new anduseful Improvements inPhonographs or Talking-Machines, of which the following is aspecification.

This invention relates to phonographs or talking machines and to theproduction of records therefor. Its object is to improve the quality ofthe musical tones or vocal utterances and to improve the behavior of theapparatus in other respects.

This application is in part a continuation of my former application No.7 00,394, filed May 29, 1912, the features of invention shown in Figures2 and 3 of the present application having been originally shown in mysaid prior application, while the features of invention shown in Fig. 1of the present application are also shown in my prior application No.779,947, filed July 19, 1913.

In the accompanying drawings: Fig. l is an elevation partly in sectionof my improved construction of a reproducer head and needle arm; andFigs. 2 and 3 are similar views showing modifications of theconstruction.

Referring to Fig. 1, the head is indicated at 1, the sound emitting neckat 2. The

diaphragm 3 is mounted within the head in the ordinary way or otherwiseand the vibrating arm 4 is shown attached at one end to the diaphragm 3and carryingat its free end a needle socket 5 adapted to receive aneedle 6 to cooperate with the record. The shape of the record is ofcourseimmaterial, the device being applicable equally well to a disk, acylinder or other form of record. Between the vibrating arm 4 and itssupport, which may be the head or other part, is a means of preventingtransmission of vibrations from the arm to the support and vice versa.Such'vibrations are absorbed, smothered or'suppresse'd by said means.-Thismeans, indicated at 7 is preferably non-metallic and may be acompound-jot gum, waxes, etc. It should by preferencebe.

a tenacious adhesive material or compound, and should be of suchcharacter as not to respond to and transmit the vibrations in question.Moreover it should be preferably of such a nature that itscharacteristics with respect to hardness and vibratility Will-not weightof Stockholm tar, one part by weight of resin and three parts by weightof guttapercha. The supporting rod 8 for the vibrating arm, as shown inFig. 1, extends entirely through this compound and is secured to the endwall of the container 9 which in this particular construction is acontinuation of the wall of the sound box. In this preferred form, therod 8 where it projects from the container 9 is coated with the compoundwhich extends also over and around the juncture of the rod with the bodyof the vibrating arm 4. This particular'arrangement has been found byexperience to aid in the production of pure tones. It will be noticedthat this construction provides for what is substantially aflexible,yielding fulcrum for the vibrating arm 4 as the rod 8 is secured to thecontainer. It will further be noticed that the efiect of the mass surrounding the rod 8 and its juncture with the arm 4 will be to dampenanylateral vibrations of rod 8 and it will also either prevent or absorbany local vibrations set up either in rod 8 or at the juncture of rod 8and arm 4 while permitting the arm 4e to vibrate withthe junctureoperating to some degree as a nodal point. By means of thisconstruction, the arm 4 is substantially sup ported without thesupporting means modi- I fylng or injuring the record tones by thesetting. up of secondary or local vibrations; or, in other Words, theconstructiomavhile simpler and more substantial, results. in

purer tones than have been secured up to the present time. v

In Fig. 2, the container 9 has fixed in its bottom a block 10' ofvulcanite, vulcanized fiber or like hard substance in which the I end ofrod 8 is secured and around the arm Within the container is placed thevibration orhiusn atnria1 7.

The structure shown m Fig. 3 19 similar in all essential features tothat shown in Fig. 1, in that the 'rod'S extends from the arm at througha cell or container 9, is 'sur rounded by the mass 7' and has its endare embodied, the head being in rigid con ""1,

nection with the rod 8 which isalso sur rounded by and is in contactwith the mass 7 located within the container 9.

The manner of securing the diaphragm 3 to the head 1 forms no part ofthe present invention, it being claimed in my co-pending application.

A large variety of vibration absorbing materials or masses may be usedmixtures of Stockholm tar, resins, gut-ta percha, etc., have been foundvery satisfactory.

No claim is made herein to the method described as claims to such methodare made in my application for Patent No. 867,709 filed Oct. 1, 1914.

I claim-- 1. The combination of a diaphragm, its head, a coiiperatingvibrating arm, a support for said arm rigidly attached thereto andprojecting laterally therefrom and attached directly to the head, and afixed plastic mass inert to vibrations and embracing the sides of saidsupport.

2. The combination of a diaphragm, a cooperating vibrating arni, acontainer fixed relatively to the diaphragm, a meltable mass of materialinert to vibrations disposed within the container and a rod embedded insaid mass with its ends rigidly attached respectively to the containerand to said arm.

'3. The combination of a diaphragm, its actuating member, a Supportingrod rigidly attached at one end to said member and its other end rigidlysecured to a support fixed relatively to the diaphragm anda meltablemass of material inert to vibrations embrac- PATRI C K I have hereuntoB. DELAN Y.

\Vitnesses ANNIE M. DELANY, 1 LAURISTON BUNKER.

